EFI offers whole house surge protectors and surge protection devices for mission-critical commercial and industrial applications. Product line includes module panelmount, hardwired, plug-in and DIN rail models. Service voltages include 120/208 wye, 120/240 wye, 208 delta, 220/380 wye, 230/400 wye , 240/120 delta split, 240 delta corner ground, 240 delta ungrounded, 277/480 wye, 347/600 wye, 480 delta corner ground/delta resistance ground/delta ungrounded/delta ungrounded. The PowerTracker line of floormount surge protection devices offer superior protection for 120V and 220V copy machines.